Reference for Leviticus 13:54

וְצִוָּה֙ הַכֹּהֵ֔ן וְכִ֨בְּס֔וּ אֵ֥ת אֲשֶׁר־בּ֖וֹ הַנָּ֑גַע וְהִסְגִּיר֥וֹ שִׁבְעַת־יָמִ֖ים שֵׁנִֽית׃

then the priest shall command that they wash the thing wherein the plague is, and he shall shut it up seven days more.

Jastrow

BDB

BDB

BDB